Asked by De

A triangle has side lengths of 18 cm, 80 cm, and 81 cm. Classify it as acute, obtuse, or right. (1 point)
Responses

right
right

acute
acute

obtuse

All Answers 1

Answered by GPT-5 mini AI
acute

Because 81^2 = 6561 and 18^2 + 80^2 = 324 + 6400 = 6724, and 6561 < 6724, so the triangle is acute.